diff mbox series

[v3,08/16] drm/i915/ddi: enable 128b/132b TRANS_DDI_FUNC_CTL mode for UHBR SST

Message ID 122ebeadf4bf0870fc26b7d12abdff88f4be8799.1735912293.git.jani.nikula@intel.com (mailing list archive)
State New
Headers show
Series drm/i915/dp: 128b/132b uncompressed SST | expand

Commit Message

Jani Nikula Jan. 3, 2025, 1:52 p.m. UTC 
128b/132b SST needs 128b/132b mode enabled in the TRANS_DDI_FUNC_CTL
register.

This is preparation for enabling 128b/132b SST. This path is not
reachable yet.

v2: Use the MST path instead of SST to also set transport select (Imre)

Reviewed-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
---
 drivers/gpu/drm/i915/display/intel_ddi.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/gpu/drm/i915/display/intel_ddi.c b/drivers/gpu/drm/i915/display/intel_ddi.c
index 36aaa82f4536..6e0684545b48 100644
--- a/drivers/gpu/drm/i915/display/intel_ddi.c
+++ b/drivers/gpu/drm/i915/display/intel_ddi.c
@@ -561,7 +561,8 @@  intel_ddi_transcoder_func_reg_val_get(struct intel_encoder *encoder,
 	} else if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_ANALOG)) {
 		temp |= TRANS_DDI_MODE_SELECT_FDI_OR_128B132B;
 		temp |= (crtc_state->fdi_lanes - 1) << 1;
-	} else if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_DP_MST)) {
+	} else if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_DP_MST) ||
+		   intel_dp_is_uhbr(crtc_state)) {
 		if (intel_dp_is_uhbr(crtc_state))
 			temp |= TRANS_DDI_MODE_SELECT_FDI_OR_128B132B;
 		else